只是单词,后面加doing的有：
finish
keep
enjoy
miss
mind
avoid
delay
allow
permit
practise
appreaciate
consider
suggest
complete
结尾是to,后面只加doing的词组：
look forward to
on one's way to
pay attention to
devote to
make contributions to
be used to
turn to
get down to
come close to
reject to
stick to
be addicated to